Home / 20,577,931.55-28,395,499.50-11,878,906.69

Finding the Fourth Proportional to 20,577,931.55, 28,395,499.50 and 11,878,906.69

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Solution

The fourth proportional to 20,577,931.55, 28,395,499.50 and 11,878,906.69 is: 16,391,710.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,577,931.55 : 28,395,499.50 = 11,878,906.69 : x
  2. Step 2: Convert to fraction form
    20,577,931.55/28,395,499.50 = 11,878,906.69/x
  3. Step 3: Cross multiply
    20,577,931.55x = 28,395,499.50 × 11,878,906.69
  4. Step 4: Simplify right side
    20,577,931.55x = 337,307,488,818,796
  5. Step 5: Solve for x
    x = 337,307,488,818,796/20,577,931.55
  6. Step 6: Final answer
    x = 16,391,710.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.